Women’s 9-9.5 (European 40) – For your reference: I’m usually around a Women’s 7.5 depending on the brand, and these fit perfectly. The buckles can be adjusted very tightly, so they definitely won’t feel loose, or tight, and the length seems perfect to me as well. I’d say the buckles allow for about a 1-size adjustment. In my opinion, these would work well for sizes 7.5-8.5, but if you’re a 9.5, I’m not sure they’d be long enough. Please make sure to do your own research! Thought I'd love a pair of teddy Birkenstocks, and the Papillio collection is just so cute, but I guess they're not for me. These look very fluffy so you might think they are just for winter, they are slippers so you can actually wear them in spring and autumn as well, and potentially summer too if you are like me - living in San Francisco. :) chec k the website for more information: https://www.birkenstock.com/us/arizona-big-buckle-shearling-fur/arizonabigbucklepap-teddyshearling-fur-0-eva-w_1489.html?dwvar_arizonabigbucklepap-teddyshearling-fur-0-eva-w__1489_width=S The iconic Arizona two strap sandal, now available in all over teddy shearling. Extra cozy, extra comfortable with amplified big buckles for a bold style. Anatomically shaped cork-latex footbed Upper: teddy shearling (wool) Footbed lining: teddy shearling Sole: EVA Heel type: platform, heel height: 25 mm Details: two straps with individually adjustable metal pin buckles Made in Portugal